hy j sakalos....thanks for your plugin.now, i use with mysql for database, data can display but edit or save button not work because error: cannot decode JSON object.i guess problem in line json_decode on Ext.decode(response.responseText)..any suggest for it, i use ExtJS Ver 3.3??

Hi everybody, I'm using this component and I want to set a value obtained of a combo into a textField of the recordForm but I can' do it. I have tried this:
var obj1 = Ext.getCmp('textField1');
obj1.setValue(1);
Error: obj1 is undefined
Help please. How can I access to the Fields of the recordForm?